On Aug 12, 2007, at 11:20 AM, Shriram Krishnamurthi wrote:
> I think this is a great idea!
>> I wrote the first version of trace to dumbly mimic the version in Chez
> Scheme (which in turn probably minicked the one in ..., which ...,
> which probably goes back to Lisp 1.5 or something). But this is
> definitely superior.
>> There's no reason it can't print the way you want it to. Indeed, if
> you're willing to settle for not handling multiple-values and having
> superfluous newlines, here's a diff that you can apply to
> ./collects/mzlib/trace.ss to get parenthetical printing (though not
> precisely in the format you specified):
>> 44c44
> < (first '(""))
> ---
>> (first '("|"))
> 63c63
> < (cons " " first)
> ---
>> (cons " |" first)
> 94d93
> < (pretty-display "(")
> 118,119c117
> < (pretty-print (car results))
> < (pretty-display ")"))
> ---
>> (pretty-print (car results)))
>> This even gives you existing indentation level, so you don't even need
> to copy and re-indent the output.
Presumably the result of using call/cc would be unbalanced parens?
John
-------------- next part --------------
A non-text attachment was scrubbed...
Name: smime.p7s
Type: application/pkcs7-signature
Size: 2223 bytes
Desc: not available
URL: <http://lists.racket-lang.org/users/archive/attachments/20070812/c7cba425/attachment.p7s>